-4/9+5/6.....?????помогите!!!!

Question

-4/9+5/6.....?????помогите!!!!

Answer 1

-4/9+5/6=(5/6-4/9)=(15/18-8/18)=7/18

Answer 2

2*-4+3*5/18
-8+3*5/18
-8+15/18
7/18